@article{KleinpeterFettke2008,
  author    = {Erich Kleinpeter and Anja Fettke},
  title     = {Quantification of the (anti)aromaticity of fulvenes subject to ring size},
  doi       = {10.1016/j.tetlet.2008.02.137},
  url       = {http://www.sciencedirect.com/science/article/pii/S0040403908003766},
  year      = {2008},
}